Gelatin pad roll and spindle therefor



March 13, 1928. 1,662,448

W. E. WILLIAMS GELATIN PAD ROLL AND SPINDLE THEREFOR Filed pril. 9. 1926 2 Sheets-Sheet l 5 fig. -1.

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March 13, 1928. 1,662,448

W. E. WILLIAMS GELATIN PAD ROLL AND SPINDLE THEREFOR Filed April 9, 1926 2 Sheets$heet 2 11/1Ill/11111111111111!!!iiJinn 'Pa tented Mar. 13, 1928.

UNITED STATES PAT NT OFFICE.

WILLIAM ERASTUS WILLIAMS, 0]! WILMETTE, ILLINOIS, ASSIGNOR 'I'O DITTO,- INCOR- PORATED, OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

GELATIN PAID ROLL AND SPINDLE THEREFOR.

. Application filed April 9,

My invention relates to rolls of gelatinized sheets that are used in the hectograph method of making copies of bills, letters, etc. and the spindle employed in carrying and supporting such rolls in service in which they are used.

The object of m invention is to provide a roll with desira ly arranged spindles at the end of the roll sheet for attaching the sheet into the carrying spindle in which it is used in handling the gelatinized sheet in hectograph work and for carrying-the gelatin pad roll in storage.

Gelatinized pad sheets are made up into rolls and are placedin a machine upon a spindle that will permit the unwinding from one spindle and thence trained over an impression bed and wound upon another spindle in the normal work of hectograph copying There is generally provided a number of spindles which are usedsuccessfully in and out of the machine and these sheets are wound and rewound numerous times during the life of the same gelatin pad. The differ ent means for holding these rolls in the machine and keeping the gelatin pad in compact rolled-up form makes a serious difference in the time of the operator using them, as compared to different types of'roll spindles that are used in this service.

The further object of my invention is to provide a main carrying spindle with auxiliary or secondary spindles, on the ends of the gelatin pad sheet which secondary spindles are adapted to engage into the main.

carrying spool or spindle and thus furnish a desirable means for handling the gelatin pad sheet in a machine in which it is used.

Reference will'be had to the accompanying drawings of which Fig. 1 is an elevation of a gelatin pad roll carried upon a carrying spindle and secured in the spindle by auxiliary, or secondary spindles, which are attached directly to the ends of the gelatin pad sheet.

Fig. 2 is a vertical sectional elevation on a larger scale than that shown in Fig. 1 showing a corresponding view.

Fig. 3 is a transverse section on line 3-3 of Fig. 1. r

Fig. 4 is an end elevation of the carrying spindle. v 1

Fig. 5 is a plan sectional view of oneend Of the carrying spindle.

Fig. 6 is a detail of the right end of one 1926. Serial no. 101,007.

die into the main spindle and the means for fastening the my spindle.

Fig. 8 is an elevation in section of the gelatin pad sheet to the second- -modified form of secondary spindle.

Fig. 9 is a plan of what is shown in Fig. 5.

Fig. 10 is a transverse view on line 7-7 of Fig. 8.

Fig. 11 is an end elevation of the spindle shown in F ig. 7.

In the drawing, 2 indicates a hollow tube or shaft which forms the main body of the carrying spindle and on the ends of this tube 2 there are provided flanges 3 having tread portions a and secured to the tube by the little flanges 5 and thus the ends of thetube 2 project outward to the outer edge of the tread portions 4 as indicated by Fig. 5.

Notches 7 are cut into the ends 6 to provide a. means for holding the spindle in place in the machine in which the spindle is used. Tube 2 is embossed at 8 to provide a seat for one of the secondary spindles which is attached directly to the end of the gelatin pad roll sheet.

The gelatin pad sheets are usually pro vided at each end with a wrapper composed of short sections of cloth or other material of suflicient length as to enwrap entirely the gelatinized portion of the roll when the same is wound up in a roll in order to protect the geiatinized Y portion from damage in handling and in storage when the roll is wound.

To the ends of these wrappers there is fastened the secondary spindies 9, the fastening employed being that of wrapping the cloth on the spindle body and stitching it back upon itself and also by stitching or riveting through the small holes in the rods as indicated by 10 but any suitable means may be employed for securing the ends of the gelatin pad sheets to the secondary spindles 9.

In the modified forms as shown in Figs. 7-9 inclusive I prefer to make indentations 20 instead of holes 19 in the flanges 3 and these indentations serve substantially as well as the holes 19 for holding the secondary spindles in place when the roll is wound up for storage purpose.

The modified form of secondary spindle shown in Figs. 7 to 9 inclusive donsistsin fastening the cloth wrapper onto the secondary spindles and to facilitate the fastening the secondary'spindle rod-21 of Figs. 8 and 9 is flattened at the spots 22 and at these flattened portions I provide holes 23 throu h which riveting or stitching takes place or securing the wra per of the cloth ends to the secondary spindles. In place of using the tubular piece 13 secured to the end of the rod 9 as shown in Fig. 6 I drill out the end 24 of the secondary spindle rod 21 and thus produce the cavit into which there is placed the spring 25. he trunnion end piece used in Figs. 8 and 9 is indicated by 26' which has a cylindrical portion 27 entered into the tubular end 24 of the rod 21 and a portion 28 of the body of this trunnion end is flattened leaving a shoulder 30. After this trunnion 'end piece 26 is introduced into the rod 21 a little lip 31 is turned down over the shoulder 30 and into close association with the fiat surface 27 but leaving a clearance which permits a. free endwise movement of the trunnion 26 in the tubular end of'the rod 24. Thus after the'spring' and trunnion end piece 26 are assembled a into the rod 21 this lip 31 is swaged downconstructed being made of small rods orwlres from A" to in diameter or smaller' which prevents the trunnion end pieces 26- from esca ing from position in the rod 21. The 21-.is substantially the same as the secondary spindle shown in F 1-6 inclusive.

It is an easy and simple matter indeed to connect and disconnect these secondary spindles in the main spindle or spool as shown since the operator simply compresses the, springs 18 or 2511s the case may be and is thus enabled to free the secondary spindles from the flanges 3. Not only that when the roll is wound up and the secondary spindles are 'enga neat pa rage that does not easily become accidentally displaced as relates to the unwinding of the geiatinized sheet.

The secondary spindles are 'very cheaply and thus much money is aved over some of the old styles of spindles heretofore used with gelatin pad rolls.

The construction of the ends of the sec ondary spindles providing means for lengthening and shortening the spindles for engagement' and disengagement with the anges of the main-supporting spindle may i termed a telescoping end but I may provide as desired any form of elastic means which will allow the length of the indle' to be altered under spring pressure or accomplishin the mechanical equivalent as shown by eteleseoping end. 7

' One end of these rods of secondary spindles 9 is provided with a little trunnion 11 while attheothe'renda'simihrtmnnionlflis notion of the secondary spindles edin the flanges it makes anice mounted in a little telescoping sleeve 13 which slides over the end 14 of the rod 9 and this tube 13 is prevented from being displaced by means of the pin 15 working in a slot 16 in the end of the tube of the rod. A trunnion piece 12 is secured permanently by pin 17 into the tube 13.

A spring 18 is interposed between 'the piece 12 and the end 14 of the rod 9 and thus serves to hold the trunnion outward to the limit of the movement of the pin 15 in the slot 16 in the tube.

A series of holes 19 in a double row are provided in the flanges 3 on the main supporting spindle 20 and the trunnion ends'll and 12 of the secondary spindle rods 9 are adapted to engage these holes 19 in the flanges 3 of the supporting spindle.

I have shown a double set of these holes in 19 in Fig. 3 but the single set may be used as desired as indicated in Fig. 4.

One of these secondary spindles 9, as before stated, 'is provided at each end of the gelatin pad sheets and whenlhe sheet is wound on a supporting spindle 2 one of the spindles 9 is placed into the seat 8 of the tube 2 and the gelatin pad wound upon itself in a single revolution which thus holds the end of the gelatin pad sheet in place on the spindle 2 to be further wound upon itself in the use of the gelatin pad sheet. On the completion of the winding of any given sheet the secondary spindle 9 at the outer end of the sheet is secured by means of trunnions11 and 12 into the holes 19 or indentations 20 of the flanges 3 and thus holds the roll in wound up secure position on the'main spindle 2 in form to be handled or transported in and out of the machine or'in and out of the storage chuteway or magazine as desired.

The engagement and disengagement of the trunnions 11 and 12 are easily accomplished bysimply. taking hold of the small tube 13 or any portion of the secondary spindle, and compressing the spring 18 for a disengagement of the trunnions, while the spring 18 automatically pushes the trunnions in place.

' What I claim is:

L A gelatinized sheet having secured at the end thereof a secondary spindle adapted to be sprung as relates to its length for varying the length in fastening the spindle to hold the gelatin pad roll in form.

- portion is held and a spring interposed to normally hold the trunnion portion out at full length. a

7. A secondary spindle of the class described, having a tubular end, a trunnion piece interposed within the end integral with the body of the spindle and a spring located within the tubular end, a trunnion piece interposed within the tubular end and provided with a flattened portion and said trunnion piece held from displacement in the tubular end by means of a lip turned down toward the flat portion of the trunnion piece from the body of the tubular portion of the spindle and with a spring inclosed in the tubular end and adapted to normally hold the trunnion piece out at its full limit as to the length of the spindle.

8. A secondary spindle of the class described, having flattened portions perforated for rivets and stitching and having the end of the gelatinized sheet enwrapping the said spindle and secured thereto by means of stitching and riveting through the said holes in t e flattened portions, a main carrying spindle for a gelatinized sheet having a tubular portion and provided with end flan mounted on each end of the tubular portion and said end flanges provided with indentures adapted to carry therein the secondary spindles.

9. A carrying spindle for a gelatin pad roll having a central body portion embossed flanges indented at the margin for furnishinwardly to furnish a seat for a secondary spindle and said spindle provided with end aging means for secondary spindles.

ing en gelatin pad roll having a secondary spindle at each end thereof and secured to the roll in combination with the main carrying spindle havin a central shaft portion and with means or holding the secondary spindles in association with the said shaft,

flanges secured to said's in wound up position.

11. A spool of the-class described having a central tubular spindle on each end of which there is mounted circular disc flanges provided with indentures in marginal region of the said flanges adapted to assist in hold-. ing a sheet carried by the spool.

12. A spool for the purpose described having a central body spindle portion upon which a sheet article is wound, end flan es on thesaid spool and indentures circum erentially arranged in the region of the periphery of the said flanges and said indentures adapted to assist in holding in wound up position the article on the spindle of the spool.

13. A spool of the class described, having a central body ortion upon which a sheet article is woun and provided with an indenture inwardly in the body portion adapted to assist in engaging and holding an end of a sheet to be wound upon the body, flanges at each end of the body portion and means for detachably securing a secondary spindle circumferentially arranged on the outer region of the said flanges and adapted to assist in holding the article carried by the spool in awound u position.

14. A spool of t e class described having a central spindle, a terminal flange at each end of said spindle said flange being deformed adjacent to its outer margin to provide a plurality of spindle supports for detachably securing a secondary spindle to said'spool flan es, whereby a flexible web may beretaine 15. A spoolof the class described havin a spindle shaft provided witha longitudina secondary spindle receiving recess and end indle shaft prospindle supports 'n for detachably le whereby a flexvided with a plurality 0 adjacent to its outermar holding a secondary spin ible web may be retained. Si ed at Chicago, in the county of Cook and tate of Illinois, this 5th day of April,

WILLIAM ERAS'I US WILLIAMS. 

